CVE-2022-39823 Use after free in n/a

High 7.5 Published 20 Oct 2022 Updated 8 May 2025

A use-after-free vulnerability in the Softing OPC UA C++ SDK allows attackers to cause denial of service or execute arbitrary code via crafted browse requests.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-39823?

CVE-2022-39823 is a high-severity use after free vulnerability in n/a, published on 20 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Softing OPC UA C++ SDK 5.66 through 6.x before 6.10. An OPC/UA browse request exceeding the server limit on continuation points may cause a use-after-free error

Weakness: CWE-416

Which versions are affected by CVE-2022-39823?

It affects 2 products.

Products include Softing Opc, Softing Opc Ua C\+\+ Software Development Kit.

How do I fix CVE-2022-39823?

No fix has been published for CVE-2022-39823 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-39823 being exploited?

There is no known exploitation of CVE-2022-39823 in the wild and no public exploit code.

Sources

Also known as GHSA-6mw3-7v65-29gj.